Question

[Ushuki Nazumi]

tính nhanh:

\(6,4\times85,6+8560\times0,036\)

(toán 8 nhé mn !)

Answer 1

[Serein]

Trả lời :

\(6,4\times85,6+8560\times0,036\)

\(=6,4\times85,6+85,6\times3,6\)

\(=85,6\times\left(6,4+3,6\right)\)

\(=85,6\times10\)

\(=856\)

Answer 2

[l҉o҉n҉g҉ d҉z҉]

6,4 . 85, 6 + 8560. 0, 036

= 6,4 . 85, 6 + 85, 6  .100 . 0, 036

= 6, 4 . 85, 6 + 85, 6 . ( 100 . 0, 036 )

= 6, 4 . 85, 6 + 85, 6 . 3, 6

= 85, 6( 6, 4 + 3, 6 )

= 85, 6 . 10

= 85, 6